Apply IBM Storage Scale FPO configuration changes

IBM Storage Scale FPO requires several global IBM Storage Scale configuration changes to operate successfully.

Set the IBM Storage Scale page pool to 25% of system memory on each node. For Hadoop noSQL application, the page pool of IBM Storage Scale FPO can be configured for better performance, for example, 30% of physical memory.

In this example, all nodes have the same amount of memory, which is a best practice. If some nodes have different memory, set the page pool on a per-node basis by using the -N flag.

# TOTAL_MEM=$(cat /proc/meminfo | grep MemTotal | tr -d \"[:alpha:]\" | tr -d\"[:punct:]\" | tr -d \"[:blank:]\")

# PAGE_POOL=$((${TOTAL_MEM}*25/(100*1024)))

 mmchconfig pagepool=${PAGE_POOL}M

Start the IBM Storage Scale cluster:

 mmstartup -a

 mmgetstate -a

Use the mmlsconfig and mmdiag commands to see the configuration changes:

 mmlsconfig

 mmdiag --config